Paolo Abeni 124a4885b5 mptcp: give rcvlowat some love ... [ Upstream commit 5684ab1a0effbfeb706f47d85785f653005b97b1 ] The MPTCP protocol allow setting sk_rcvlowat, but the value there is currently ignored. Additionally, the default subflows sk_rcvlowat basically disables per subflow delayed ack: the MPTCP protocol move the incoming data from the subflows into the msk socket as soon as the TCP stacks invokes the subflow data_ready callback. Later, when __tcp_ack_snd_check() takes action, the subflow-level copied_seq matches rcv_nxt, and that mandate for an immediate ack. Let the mptcp receive path be aware of such threshold, explicitly tracking the amount of data available to be ready and checking vs sk_rcvlowat in mptcp_poll() and before waking-up readers. Additionally implement the set_rcvlowat() callback, to properly handle the rcvbuf auto-tuning on sk_rcvlowat changes. Finally to properly handle delayed ack, force the subflow level threshold to 0 and instead explicitly ask for an immediate ack when the msk level th is not reached. Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <martineau@kernel.org> Link: https://lore.kernel.org/r/20231023-send-net-next-20231023-2-v1-5-9dc60939d371@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> Stable-dep-of: 05f76b2d634e ("tcp: Adjust clamping window for applications specifying SO_RCVBUF") Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-08-11 12:47:19 +02:00
..
6lowpan	…
9p	net/9p: fix uninit-value in p9_client_rpc()	2024-06-16 13:47:41 +02:00
802	…
8021q	net: gro: fix udp bad offset in socket lookup by adding {inner_}network_offset to napi_gro_cb	2024-05-17 12:02:07 +02:00
appletalk	appletalk: Fix Use-After-Free in atalk_ioctl	2023-12-20 17:01:50 +01:00
atm	atm: Fix Use-After-Free in do_vcc_ioctl	2023-12-20 17:01:48 +01:00
ax25	ax25: Replace kfree() in ax25_dev_free() with ax25_dev_put()	2024-06-21 14:38:14 +02:00
batman-adv	batman-adv: Don't accept TT entries for out-of-spec VIDs	2024-07-05 09:34:04 +02:00
bluetooth	Bluetooth: hci_sync: Fix suspending with wrong filter policy	2024-08-11 12:47:19 +02:00
bpf	bpf: Set run context for rawtp test_run callback	2024-06-21 14:38:16 +02:00
bpfilter	…
bridge	net: bridge: mst: Check vlan state for egress decision	2024-08-03 08:53:44 +02:00
caif	sock: Remove ->sendpage*() in favour of sendmsg(MSG_SPLICE_PAGES)	2023-06-24 15:50:13 -07:00
can	net: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_session_new	2024-07-05 09:34:01 +02:00
ceph	libceph: fix race between delayed_work() and ceph_monc_stop()	2024-07-18 13:21:22 +02:00
core	bpf: Fix a segment issue when downgrading gso_size	2024-08-03 08:54:38 +02:00
dcb	net: dcb: choose correct policy to parse DCB_ATTR_BCN	2023-08-01 21:07:46 -07:00
dccp	Fix race for duplicate reqsk on identical SYN	2024-07-05 09:33:48 +02:00
devlink	devlink: fix port new reply cmd type	2024-03-26 18:20:11 -04:00
dns_resolver	keys, dns: Fix size check of V1 server-list header	2024-01-25 15:35:41 -08:00
dsa	net: dsa: mark parsed interface mode for legacy switch drivers	2023-08-09 13:08:09 -07:00
ethernet	ethernet: Add helper for assigning packet type when dest address does not match device address	2024-05-02 16:32:46 +02:00
ethtool	ethtool: netlink: do not return SQI value if link is down	2024-07-18 13:21:14 +02:00
handshake	net/handshake: Fix handshake_req_destroy_test1	2024-02-23 09:24:50 +01:00
hsr	hsr: Simplify code for announcing HSR nodes timer setup	2024-05-17 12:02:24 +02:00
ieee802154	sysctl-6.6-rc1	2023-08-29 17:39:15 -07:00
ife	net: sched: ife: fix potential use-after-free	2024-01-01 12:42:30 +00:00
ipv4	net: nexthop: Initialize all fields in dumped nexthops	2024-08-03 08:54:38 +02:00
ipv6	ipv6: take care of scope when choosing the src addr	2024-08-03 08:54:13 +02:00
iucv	net/iucv: Avoid explicit cpumask var allocation on stack	2024-07-05 09:33:51 +02:00
kcm	net: kcm: fix incorrect parameter validation in the kcm_getsockopt) function	2024-03-26 18:19:40 -04:00
key	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-08-18 12:44:56 -07:00
l2tp	net l2tp: drop flow hash on forward	2024-05-17 12:02:02 +02:00
l3mdev	…
lapb	…
llc	llc: call sock_orphan() at release time	2024-02-05 20:14:36 +00:00
mac80211	wifi: mac80211: track capability/opmode NSS separately	2024-08-03 08:54:33 +02:00
mac802154	net: mac802154: Fix racy device stats updates by DEV_STATS_INC() and DEV_STATS_ADD()	2024-07-25 09:50:52 +02:00
mctp	net: mctp: copy skb ext data when fragmenting	2024-03-26 18:19:34 -04:00
mpls	net: mpls: error out if inner headers are not set	2024-04-13 13:07:41 +02:00
mptcp	mptcp: give rcvlowat some love	2024-08-11 12:47:19 +02:00
ncsi	net/ncsi: Fix the multi thread manner of NCSI driver	2024-06-21 14:38:14 +02:00
netfilter	netfilter: nft_set_pipapo_avx2: disable softinterrupts	2024-08-03 08:54:37 +02:00
netlabel	calipso: fix memory leak in netlbl_calipso_add_pass()	2024-01-25 15:35:14 -08:00
netlink	netlink: Fix kernel-infoleak-after-free in __skb_datagram_iter	2024-03-06 14:48:34 +00:00
netrom	netrom: Fix a memory leak in nr_heartbeat_expiry()	2024-06-27 13:49:06 +02:00
nfc	nfc: nci: Fix handling of zero-length payload packets in nci_rx_work()	2024-06-12 11:12:51 +02:00
nsh	nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment().	2024-05-17 12:02:02 +02:00
openvswitch	openvswitch: get related ct labels from its master if it is not confirmed	2024-07-05 09:33:46 +02:00
packet	af_packet: Handle outgoing VLAN packets without hardware offloading	2024-08-03 08:54:13 +02:00
phonet	phonet: fix rtm_phonet_notify() skb allocation	2024-05-17 12:02:22 +02:00
psample	psample: Require 'CAP_NET_ADMIN' when joining "packets" group	2023-12-13 18:45:10 +01:00
qrtr	net: qrtr: ns: Fix module refcnt	2024-06-12 11:12:12 +02:00
rds	net/rds: fix possible cp null dereference	2024-04-10 16:35:49 +02:00
rfkill	net: rfkill: gpio: set GPIO direction	2024-01-01 12:42:41 +00:00
rose	net/rose: fix races in rose_kill_by_device()	2024-01-01 12:42:31 +00:00
rxrpc	rxrpc: Only transmit one ACK per jumbo packet received	2024-05-17 12:02:23 +02:00
sched	sched: act_ct: take care of padding in struct zones_ht_key	2024-08-11 12:47:18 +02:00
sctp	sctp: prefer struct_size over open coded arithmetic	2024-07-11 12:49:06 +02:00
smc	net/smc: set rmb's SG_MAX_SINGLE_ALLOC limitation only when CONFIG_ARCH_NO_SG_CHAIN is defined	2024-08-03 08:53:37 +02:00
strparser	…
sunrpc	SUNRPC: avoid soft lockup when transmitting UDP to reachable server.	2024-08-03 08:53:54 +02:00
switchdev	net: bridge: switchdev: Skip MDB replays of deferred events on offload	2024-03-01 13:35:06 +01:00
tipc	tipc: Return non-zero value from tipc_udp_addr2str() on error	2024-08-03 08:54:37 +02:00
tls	tls: fix missing memory barrier in tls_init	2024-06-12 11:12:50 +02:00
unix	af_unix: Disable MSG_OOB handling for sockets in sockmap/sockhash	2024-08-03 08:54:36 +02:00
vmw_vsock	vsock/virtio: fix packet delivery to tap device	2024-04-10 16:35:50 +02:00
wireless	wifi: cfg80211: fix reporting failed MLO links status with cfg80211_connect_done	2024-08-11 12:47:19 +02:00
x25	net/x25: fix incorrect parameter validation in the x25_getsockopt() function	2024-03-26 18:19:41 -04:00
xdp	xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING	2024-04-17 11:19:28 +02:00
xfrm	xfrm: call xfrm_dev_policy_delete when kill policy	2024-08-03 08:53:42 +02:00
Kconfig	bpf: Add fd-based tcx multi-prog infra with link support	2023-07-19 10:07:27 -07:00
Kconfig.debug	…
Makefile	…
compat.c	…
devres.c	…
socket.c	net: Save and restore msg_namelen in sock_sendmsg	2024-01-10 17:16:51 +01:00
sysctl_net.c	sysctl: treewide: drop unused argument ctl_table_root::set_ownership(table)	2024-08-11 12:47:13 +02:00